Gas-engine attachment



(No Model.)

2 Sheets-Sheet 1. G W LAMOS GAS ENGINE ATTACHMENT.

No. 574,614. Patented Jan. 5, 1897.

"III III I IL. mm:

(No Model.) 2 SheetsSheet 2.

G. W. LAMOS;

GAS ENGINE ATTACHMENT.

No. 574,614. Patented Jan. 5, 1897.

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UNITED STATES PATENT OFFICE.

GEORGE TV. LAMOS, OF FORT MADISON, IOlVA.

GAS-ENGINE ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 574,614, dated January 5, 1897.

Application filed April 30, 1896.

To all whom, it may concern:

Be it known that I, GEORGE W. LAMOS, a citizen of the United States, residing at Fort Madison, in the county of Lee and State of Iowa, have invented a new and useful Gas- Engine Attachment, of which the following is a specification.

This invention relates to gas -engine attachments; and it has for its object to provide a new and useful governor-mechanism attachment for gas-engines having simple and efficient means for positively regulating the supplyof gas and air to the engine, and thereby accurately controlling the speed of the engine.

The invention also contemplates a gov ernor attachment for gas engines having means for quickly changing the speed of the engine without stopping the same, and also providing for an automatic stopping of the engine in case of breakage of the governorbelt.

Referring to the accompanying drawings, Figure 1 is a perspective view of a portion of a gasengine equipped with the herein -described governor attachment. Fig. 2 is a vertical longitudinal sectional View of the attachment. Fig. 3 is a transverse sectional view thereof on the line 3 3 of Fig. 2. Fig. 4 is a horizontal sectional view on the line 4 4 of Fig. 2.

Referring to the accompanying drawings, 1 designates a gas-engine having at one end a supply-chamber 2, with which supplychamber 2 is suitably connected one end of the main suction supply-pipe 3, which delivers a mixture of gas and air to the engine for the purpose of being exploded in the usual way, and thereby providing for actuating the piston of the engine.

In the presentinvention the suction supplypipe 3 of the engine leads from its point of connection with the supply-chamber 2 thereof to a vaporizer-box 4, located at a convenient point at one side of the engine. The pipe 3 is fitted in the bottom of the box 4, and is provided with an upright extension 5, projecting upwardly Within the box 4, so that surplus oil which may collect in the bottom of the box will not run thereinto, and having at its upper end a flat valve-seat 6, over which works the fiat valve-disk 7, fitted on a vertically-mov- Serial No. 589,705. on) model.)

able valve-stem S, projecting above and below the valve-disk 7 The portion of the valvestem 8 below the disk 7 has fitted thereto a series of curved downwardly-disposed guidefingers 9, which register and slide within the suction-pipe extension and serve to steady the valve-disk 7, so that it will seat itself perfectly true on the valve-seat (5 to entirely out off the supply of explosive mixture to the engine at the proper time. The portion of the stem 8 above the disk 7 works through an opening 10 in the top of the vaporizer-box 4, and is provided at its upper extremity with an annular notch 11, the function of which will be more particularly referred to.

The suction created in the pipe 3 by the piston of the engine provides for forcibly drawing a quantity of air into the box 4 through the air-supply tube 12, projecting upwardly within the box 4 and communicating with the outer air. Arranged to work within the upper end of the tube 12 is a verticallymovable valve 13,'limited inits upward movement by the stop-screw 14, fitted in the threaded opening in the top of the box 4 and depending withinthe box to a point directly above the valve 13. The valve 13 opens during the operation of the engine to admit air into the box 4, and reseats itself upon the stoppage of the engine, as will be readily understood.

- The vaporizer-box 4 has fitted in the bottom thereof the inwardly-extending oil-jet pipe 16, provided at its upper end with a perforate jet-cap 17, which provides for directing a fine stream of oil against the glass spray-bulb 18, fitted in the top of the box 4, directly above and in line with the jet-pipe 16. The pipe 16 is arranged in a line with the oil-feed pipe 19, and surplus oil is drained from the bottom of the vaporizer-box through the oil-drain pipe 20,0onnected with the drain-pocket 21,formed in the bottom of the box directly at one side of the suction-pipe'extension 5,and said drainpipe 20 is preferably designed to carry the oil back to the reservoir tank or can.

A partition-plate 22 is fitted within the box 4, between the suction supply-pipe extension 5 and the oil-jet pipe 16, and said partitionplate 22 is provided in its lower edge with a gauze-covered circulating-openin g 23,through which the mixture of oil and air is drawn before it passes into the suction supply-pipe extension 5, so that the explosive mixture will be in the best possible condition as it passes into the supply-chamber of the engine to be exploded.

Suitably secured on top of the vaporizerbox 4 is a pair of perforated bearing-arms 24:, in which is journaled a horizontal rock-shaft 25, provided at one end with an angled depending arm extension 26, having at its lower end a bearing-spindle 97, 011 which spindle is journaled an idler-pulley 28, the function of which will be presentlydescribed. At a point between the bearings for the rock-shaft 25 the said shaft has loosely mounted thereon the valve-lever 2E). The said valve'lever 29 is provided at one end with a collar 30, loosely fitting the shaft 25, and at its other free end with a fork 31, loosely engaging the annular notch 11 at the upper end of the valve-stein S. The valve-lever 29 is normally held in an elevated position by means of the coiled adjusting-spring 32, wrapped on the rock-shaft 25, and provided with hook extremities 33. One of the hook extremities 33 of the coiled adjustin g-sprin g 32 is engaged with the under side of the valt'edever 29 at one side of the shaft 25, and the other hook extremity 33 of said spring is engaged at one side of the doublehandled adjusting-lever 3i. The adjusting-lever 3t essentially consists of a straight bar rounded at opposite ends to form the handles 35 and provided intermediate of its ends with a collar 36, mounted on the shaft 25 and receiving a set-screw 37, which impinges on the shaft 25, to provide for holding the said lever 3i in any adjusted position.

Directly at one side of the valve-lever 29, loosely mounted 011 the shaft 25, is arranged atappet-collar 38. The tappet-collar 38 is secured fast on the shaft 25 by means of the set-screw 39 and is provided with an angled lug 40, normally lying above the plane of and adapted to work onto the upper side of the valve'lever 29 when the rock-shaft 25 oscillates in its bearings, as will be presently described, and directly at one side of the rockshaft 25 is arranged a substantially U shaped supporting-bracket t1, suitably secured on top of the vaporizer-box &. The bracket i1 supports thereon a centrifugal ball-governor 42, having a vertically-movable stem 1L3, working through the upper side of the bracket 41 directly above and onto the upper end of the valve-stem 8. The ball-governor 452 has connected therewith the horizontal beveled gearwheel 44, meshing with asimilar adjacent gear-wheel 45, mounted at the inner end of a shortcounter-shaft to, supported in suitable bearings 47 above the vaporizer-box at one end thereof and carrying a belt-pulley 48, over which passes a governor-belt it), driven by a belt-wheel 5O onone of the shafts of the engine. At a point between the pulley -18 and wheel 50 the governor-belt 49 receives therea'gainst the idler-pulley 28, which by reason of its own weight and the weight of the arm extension 26 of the rock-shaft 25 provides for normally maintaining the belt at a proper tension.

Normally the adj listing-spring 32 elevates the valve-lever 29, and thereby holds the valve 7 open, so that a quantity of the explosive mixture will pass through the pipe 3 into the engine; but should the speed of the engine become abnormal the governor 42 will operate to move the stem 43 downward and thereby cause the valve-stem S to be moved downward to cut off the supply of explosive mixture to the engine until the speed of the same again reaches normal, and in this operation of the governor mechanism it will be observed that a regulated quantity of explosive mixture may be fed to the engine at all times. At any time during the operation of the engine, if it is desired to adjust a belt or the like, it is simply necessary to press downward on the valve-lever 29 to provide for closing the valve '7 until it is again desired to allow the engine to run, which is accomplished by simply releasing the pressure from the said valve-lever.

In connection with the operation of the valve-lever 29 it will be noted that the speed of the engine may be quickly changed without stopping the same by loosening the lever 3% on the shaft 25 and turning the same either one way or the other to provide for tightening or loosening the spring 32, as the case may be, and thereby adjust the spring-pressure exerted against the valve-lever 29, as will be readily understood by those skilled in the art.

The idler-pulley 28 not only serves the function of a tension-pulley to maintain the governor-belt if) at a proper tension, but in the event of a breakage of the belt 40 it will be observed that the combined weight of the pulley 2S and the arm 20 will provide for oscillatin g the shaft 25 in its bearings, and thereby forcing the tappet-collar 8S downward on the valve-lever 29, which movement adjusts the valve-stem 8 downward and closes the valvedisk 7 on its seat 6 and causes the engine to immediately and automatically stop.

Various changes in the form, proportion, and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention.

Having thus described the invention, what is claimed, and desired to be secured by Lctters Patent, is

1. In a gas-engine attachment, the combi= nation with the main suction supply-pipe of the engine, of a vaporizer-box having an air inlet and separate oil-feed and d rain-pipe connections therewith, an upright pipe extension arranged within the vaporizer-box and 001m municating with said main suction supplypipe, said upright pipe extension having a valve-seat at its upper end within the box, a verticallymovable valve-stem working through the top of the vaporizer-box. and car rying Within the same a valve-disk Working over and onto the said pipe extension, adj usting mechanism for said valve-stem, and a partition-plate fitted Within the vaporizer-box at one side of said pipe extension and provided at its lower edge with a gauze-covered circulating-opening, substantially as set forth.

2. In a gas-engine attachment, the combination with the main suction supply-pipe of the engine having a valve-seat, of a verticallymovable valve-stem carrying a valve-disk Working over and onto the valve-seat of said suction supply-pipe, a suitably-supported shaft, an adjustable spring coiled on said shaft, a valve-adjusting lever loosely mounted on said shaft and connected at one end with said valve-stem, said valve-adjustin g lever being engaged and normally elevated by said spring, and a suitably-operated governor supported above the valve-adjusting lever and having a vertically-movable stem work ing above and onto the upper end of said valve-stem, substantially as set fort-h.

3. In a gas-engine attachment, the combination with the suction supply-pipe of the engine having a valve-seat, of a vertically-movable valve-stem carrying a valve-disk working over said seat, a normally spring-elevated valve-adjusting lever supported at one side of the valve-stem and loosely connected therewith, and a suitably-operated governor supported above the valve-adjusting lever and having a vertically-movable stem working above and onto the upper end of said valvestem, substantially as set forth.

4:. In a gas-engine attachment, the combination of the main suction supply-pipe of the engine having a valve-seat, a vertically-movable valve-stem carrying a valvedisk working over said seat, a suitably-supported shaft, a valve-lever loosely mounted at one end on said shaft and loosely connected at its other end with said valve-stem, an adj ustingspring coiled on said shaft and having hook extremities, one of which engages With said valvelever, a double-handled adjusting-lever adjustably fitted on said shaft and engaging With the other hook extremity of said spring, and a suitably-operated governor supported above the valve-lever and having a verticallymovable stem Working above and onto the upper end of the valve-stem, substantially as.

set forth.

5. In a gas-engine attachment, the combination of a'suotion supply-pipe of a gas-engine having a valve-seat, a movable valvestem carrying a valve-disk Working over said seat, a horizontal rock-shaft journaled in suitablebearingsand provided at one end with a depending arm extension carrying an idler-pulley, a normally spring-elevated valve-adjusting lever loosely mounted at one end on said rock-shaft and loosely connected at its other end with said valve-stem, a tappet-collar secured fast on the rock-shaft at one side of the valve-adj usting lever and having a lug normally lying above and adapted to Work onto said valve-adjusting lever, a governor supported above the valve-adjusting lever and having a vertically-movable stem working above and onto the upper end of the valve-stem, a counter-shaft geared With said governor and carrying a belt-pulley, and

governor-belt passing over said belt-pulley and driven from one of the shafts of the gasengine, said governor-belt receiving thereagainst the Weight of said idler-pulley, substantially as set forth.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two Witnesses.

GEORGE W. LAMOS. Witnesses:

BYRON J. PEASLEY, G. D. HUTCHISON. 

